Quiet engineers get offer from claimant (9)
I believe the answer is:
pretender
'claimant' is the definition.
(I know that Pretender is a type of claimant)
'quiet engineers get offer' is the wordplay.
'quiet' becomes 'p' (music symbol for 'piano', ie soft or quiet).
'engineers' becomes 're' (Royal Engineers).
'get' says to put letters next to each other.
'offer' becomes 'tender' (tender can mean to offer something).
'p'+'re'+'tender'='PRETENDER'
'from' acts as a link.
(Other definitions for pretender that I've seen before include "One who claims a title or position" , "One claiming a title" , "Claimant to a throne, usually without just title" , "One acting" , "fake" .)